Concrete cup and cap product formulas for ample groupoids are developed and applied to tiling-space cohomology computations and to an asymptotic-innerness invariant for C*-algebra automorphisms.
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Cup and cap products for cohomology and homology groups of ample groupoids
Concrete cup and cap product formulas for ample groupoids are developed and applied to tiling-space cohomology computations and to an asymptotic-innerness invariant for C*-algebra automorphisms.